The bread is so ____(hard)that I can ___(hard)cut it into pi

it is so hard that i can't understand the sentences The problem is so hard that I can't work it out .如果去掉"it"就不能 1.The work is hard.I can’t finish it on time.(用so…that连接两句子) The work is hard.I can't finish it on time.(用so···that连接两个句子 the problem is so hard that （ ） of the student can work it o I work hard so that I can get the first english is so hard that i can’t learn it well. The math problem is so hard that only ( ) of us can work it The problem is so hard that almost nobody can work it out为什么 What the teacher said is so hard that he can t understand it it is so hard problem for the twins that none of them can wo It’s so hard that I can’t understand the voices.（改为同义句）